Package org.apache.cayenne.query
Class DeleteBatchQuery
- java.lang.Object
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- org.apache.cayenne.query.BatchQuery
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- org.apache.cayenne.query.DeleteBatchQuery
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- All Implemented Interfaces:
Serializable
,Query
public class DeleteBatchQuery extends BatchQuery
Batched delete query.- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected boolean
usingOptimisticLocking
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Fields inherited from class org.apache.cayenne.query.BatchQuery
dbAttributes, dbEntity, rows
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Constructor Summary
Constructors Constructor Description DeleteBatchQuery(DbEntity dbEntity, List<DbAttribute> qualifierAttributes, Collection<String> nullQualifierNames, int batchCapacity)
Creates new DeleteBatchQuery.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
add(Map<String,Object> dataObjectId)
boolean
isNull(DbAttribute attribute)
Returns true if a given attribute always has a null value in the batch.boolean
isUsingOptimisticLocking()
Returns true if the batch query uses optimistic locking.void
setUsingOptimisticLocking(boolean usingOptimisticLocking)
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Methods inherited from class org.apache.cayenne.query.BatchQuery
createSQLAction, getDbAttributes, getDbEntity, getMetaData, getRows, route
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Constructor Detail
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DeleteBatchQuery
public DeleteBatchQuery(DbEntity dbEntity, List<DbAttribute> qualifierAttributes, Collection<String> nullQualifierNames, int batchCapacity)
Creates new DeleteBatchQuery.- Parameters:
dbEntity
- Table or view to delete.qualifierAttributes
- DbAttributes used in the WHERE clause.nullQualifierNames
- DbAttribute names in the WHERE clause that have null values.batchCapacity
- Estimated size of the batch.
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Method Detail
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isNull
public boolean isNull(DbAttribute attribute)
Returns true if a given attribute always has a null value in the batch.- Since:
- 1.2
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isUsingOptimisticLocking
public boolean isUsingOptimisticLocking()
Returns true if the batch query uses optimistic locking.- Overrides:
isUsingOptimisticLocking
in classBatchQuery
- Since:
- 1.2
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setUsingOptimisticLocking
public void setUsingOptimisticLocking(boolean usingOptimisticLocking)
- Since:
- 1.2
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